Bearing, more particularly rolling bearing

Abstract

A bearing, more particularly to an antifriction bearing having a first bearing ring ( 1 ), a second bearing ring ( 2 ), and a claw pole arrangement ( 13 ), wherein the claw pole arrangement ( 3 ) includes a first claw ring ( 4 ) with a series of first claws ( 5 ) and a second claw ring ( 6 ), integrated in the circumferential direction of the axis of rotation, with a series of second claws, wherein the claw rings ( 4, 8 ) are arranged on the first bearing ring ( 1 ), and the claws of the two claw rings ( 4, 6 ) form magnetic circuits with a series of magnetic poles ( 8 ) surrounding the axis of rotation, and wherein the magnetic poles ( 8 ) are arranged on the second bearing ( 3 ). The objective of specifying a bearing, more particularly an anti-friction bearing, having a detection device for bearing forces which is structurally easy to integrate, is met according to the invention by a gap ( 10 ) being formed in the circumferential direction at least in some sections between the first claw ring ( 4 ) and the second claw ring ( 6 ), wherein beyond the gap ( 10 ), the magnetic circuit is closed between a claw ( 5 ) of the first claw ring ( 4 ) and a claw of the second claw ring ( 6 ) adjacent in a circumferential direction, and by a magnetic sensor ( 11 ) arranged in the region of the gap ( 10 ) to detect the magnetic field passing through the gap ( 10 ).

1 . A bearing, comprising:
 a first bearing ring,   a second bearing ring, and   a claw pole arrangement,   the claw pole arrangement comprises a first claw ring with a series of first claws and a second claw ring with a series of second claws offset in a circumferential direction of a rotational axis,   the claw rings are arranged on the first bearing ring,   the claws of the first and second claw rings form magnetic circuits with a series of magnetic poles surrounding the rotational axis that are arranged on the second bearing ring,   in the circumferential direction, at least in some sections a gap is formed between the first claw ring and the second claw ring, wherein the magnetic circuit is closed over the gap between one of the claws of the first claw ring and one of the claws of the second claw ring adjacent in the circumferential direction, and   a magnetic sensor that detects a magnetic field passing through the gap is arranged in an area of the gap.   
     
     
         2 . The bearing according to  claim 1 , wherein the gap is constructed as an air gap. 
     
     
         3 . The bearing according to  claim 1 , wherein the gap is filled with a magnetically non-conductive material. 
     
     
         4 . The bearing according to  claim 1 , wherein an insulation ring made from a magnetically non-conductive material is arranged between the claw rings and the first bearing ring. 
     
     
         5 . The bearing according to  claim 4 , wherein the claw rings are held in recesses of the insulation ring and the insulation ring fills the gap between the claw rings at least in some sections. 
     
     
         6 . The bearing according to  claim 4 , wherein the magnetic sensor is arranged on or in the insulation ring. 
     
     
         7 . The bearing according to  claim 1 , wherein the two claw rings surround an induction coil surrounding the rotational axis, and the magnetic circuits surround the induction coil. 
     
     
         8 . The bearing according to  claim 7 , wherein the magnetic sensor is loaded by an energy storage device that is charged by the induction coil. 
     
     
         9 . The bearing according to  claim 3 , wherein the magnetically non-conductive material is plastic. 
     
     
         10 . The bearing according to  claim 4 , wherein the insulation ring is made from plastic.